Take your lashes from lackluster to lush. Formulated by the experts in lashes, just one swipe of this lash-loving serum each night makes lashes look longer, thicker and darker in as little as 4 weeks with maximum results at 8 weeks. Borboleta’s nourishing formula works wonders on natural lashes, yet it’s totally lash extension safe. Warning: As with many cosmetic products, some users may experience mild allergic reactions. After use, if redness, itching or other irritation occurs, discontinue use for 48 hours. Upon resumption, if irritation persists, discontinue use. If you're pregnant or nursing, being treated for any eye-related disorder, undergoing cancer treatment or prone to dry eyes or styes, consult your physician before use.